.NET Framework Getting started with .NET Framework
Remarks
The .NET Framework is a set of libraries and a runtime, originally designed by Microsoft. All .NET programs compile to a bytecode called Microsoft Intermediate Language (MSIL). The MSIL is run by the Common Language Runtime (CLR).
Below you can find several examples of "Hello World" in various languages that support the .NET Framework. "Hello World" is a program that displays "Hello World" on the display device. It's used for illustrating the basic syntax for constructing a working program. It can also be used as a sanity test to make sure that a language's compiler, development environment, and runtime environment are all working correctly.
Versions
.NET
| Version | Release Date |
|---|---|
| 1.0 | 2002-02-13 |
| 1.1 | 2003-04-24 |
| 2.0 | 2005-11-07 |
| 3.0 | 2006-11-06 |
| 3.5 | 2007-11-19 |
| 3.5 SP1 | 2008-08-11 |
| 4.0 | 2010-04-12 |
| 4.5 | 2012-08-15 |
| 4.5.1 | 2013-10-17 |
| 4.5.2 | 2014-05-05 |
| 4.6 | 2015-07-20 |
| 4.6.1 | 2015-11-17 |
| 4.6.2 | 2016-08-02 |
| 4.7 | 2017-04-05 |
Compact Framework
| Version | Release Date |
|---|---|
| 1.0 | 2000-01-01 |
| 2.0 | 2005-10-01 |
| 3.5 | 2007-11-19 |
| 3.7 | 2009-01-01 |
| 3.9 | 2013-06-01 |
Micro Framework
| Version | Release Date |
|---|---|
| 4.2 | 2011-10-04 |
| 4.3 | 2012-12-04 |
| 4.4 | 2015-10-20 |
Hello World in Boo
print "Hello World"
Hello World in C#
using System;
class Program
{
// The Main() function is the first function to be executed in a program
static void Main()
{
// Write the string "Hello World to the standard out
Console.WriteLine("Hello World");
}
}
Console.WriteLine has several overloads. In this case, the string "Hello World" is the parameter, and it will output the "Hello World" to the standard out stream during execution. Other overloads may call the .ToString of the argument before writing to the stream. See the .NET Framework Documentation for more information.
Live Demo in Action at .NET Fiddle
Hello World in C++/CLI
using namespace System;
int main(array<String^>^ args)
{
Console::WriteLine("Hello World");
}
Hello World in F#
open System
[<EntryPoint>]
let main argv =
printfn "Hello World"
0
Live Demo in Action at .NET Fiddle
Hello World in IL
.class public auto ansi beforefieldinit Program
extends [mscorlib]System.Object
{
.method public hidebysig static void Main() cil managed
{
.maxstack 8
IL_0000: nop
IL_0001: ldstr "Hello World"
IL_0006: call void [mscorlib]System.Console::WriteLine(string)
IL_000b: nop
IL_000c: ret
}
.method public hidebysig specialname rtspecialname
instance void .ctor() cil managed
{
.maxstack 8
IL_0000: ldarg.0
IL_0001: call instance void [mscorlib]System.Object::.ctor()
IL_0006: ret
}
}
Hello World in Nemerle
System.Console.WriteLine("Hello World");
Hello World in Oxygene
namespace HelloWorld;
interface
type
App = class
public
class method Main(args: array of String);
end;
implementation
class method App.Main(args: array of String);
begin
Console.WriteLine('Hello World');
end;
end.
Hello World in PowerShell
Write-Host "Hello World"
Hello World in Python (IronPython)
print "Hello World"
import clr
from System import Console
Console.WriteLine("Hello World")
Hello World in Visual Basic .NET
Imports System
Module Program
Public Sub Main()
Console.WriteLine("Hello World")
End Sub
End Module
Live Demo in Action at .NET Fiddle
Introduction to Visual Basic .NET
